Symmetry transformations,translational symmetry,rotational symmetry,reflection symmetry,inversion symmetry,14 bravais lattices,bravais lattices in 2d,bravais lattices in 3d,solid state physics,lattice planes, cubic crystal system, tetragonal crystal system, orthorhombic crystal system, trigonal crystal system, hexagonal crystal system, monoclinic crystal system, triclinic crystal system